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Generation and detection of quantum turbulence in Superfluid He-3-B.

Research output: Contribution to journalJournal article

Published

Journal publication date01/2001
JournalPhysical Review Letters
Journal number2
Volume86
Number of pages4
Pages244-247
Original languageEnglish

Abstract

We describe the first direct observations of turbulence in super-fluid He-3-B. The turbulence is generated by a vibrating-wire resonator driven at velocities exceeding the pair-breaking critical velocity. It is detected by the resulting decrease in the thermal damping on a neighboring "detector" vibrating-wire resonator. The superfluid flow field associated with the turbulence Andreev reflects thermal quasiparticle excitations, effectively screening the detector wire, resulting in a decrease in the thermal damping.